Why are the visual wheels acting strange, not aligning to the chassis wheels?

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#1

My script involves a chassis that has wheels. The wheels that I have modeled are supposed to weld each other, and then weld the visual wheels to the chassis wheels, and then supposed to align with the chassis wheels so it looks like the visual wheels are moving and turning. The welding works, but for some reason it doesn’t align properly and it aligns very weirdly

image
image

As the car goes forward, the wheels rotate along weirdly like the center of origin is the car origin, but all the origins are centered, so that’s not the case.

Code:

local vBody = script.Parent.VisualBody
local rigbody = script.Parent.rig.RealBase

local visFR = vBody.FRWheel.FRRim
local visFL = vBody.FLWheel.FLRim
local visRR = vBody.RRWheel.RRRim
local visRL = vBody.RLWheel.RLRim

--for _,v in pairs(vBody:GetDescendants()) do
--	if v:IsA("BasePart") then
--		v.Transparency = 1
--	end
--end

local function weldall(arraytouse)
	local array = {}
	for i,v in pairs(arraytouse) do
		if v:IsA("BasePart") then
			table.insert(array, v)
		end
	end
	for i,v in pairs(arraytouse) do
		if v:IsA("BasePart") then
			local weld = Instance.new("WeldConstraint",v)
			weld.Part0 = array[i]
			weld.Part1 = array[i+1]
		end
	end
end

local function weldparts(p1,p2)
	local weld = Instance.new("WeldConstraint",p1)
	weld.Part0 = p1
	weld.Part1 = p2
end

--destroy welds first

for _,v in pairs(vBody:GetDescendants()) do
	if v:IsA("WeldConstraint") or v:IsA("Motor6D") or v:IsA("Weld") then
		v:Destroy()
	end
end

--set position of rig 
rigbody.Parent:SetPrimaryPartCFrame(CFrame.new((visFL.Position.X+visRL.Position.X)/2, visFL.Position.Y + 1 , (visFL.Position.Z + visFR.Position.Z)/2))
rigbody.Size = Vector3.new(math.abs(visFL.Position.X - visRL.Position.X),1, math.abs(visFL.Position.Z - visFR.Position.Z))
--weld everything 


local fr_b1 = script.Parent.rig.FR.base1
local fl_b1 = script.Parent.rig.FL.base1
local rr_b1 = script.Parent.rig.RR.base1
local rl_b1 = script.Parent.rig.RL.base1

local mainB = rigbody

fr_b1.Position = mainB.Position + Vector3.new(mainB.Size.X/2,0,mainB.Size.Z/2)  
fl_b1.Position = mainB.Position + Vector3.new(mainB.Size.X/2,0,-mainB.Size.Z/2)  
rr_b1.Position = mainB.Position + Vector3.new(-mainB.Size.X/2,0,mainB.Size.Z/2)  
rl_b1.Position = mainB.Position + Vector3.new(-mainB.Size.X/2,0,-mainB.Size.Z/2)  

rigbody.CFrame *= CFrame.Angles(0,math.rad(180),0)

weldall(vBody.LDoor:GetDescendants())
weldall(vBody.RDoor:GetDescendants())
weldparts(vBody.LDoor.LDoor, vBody.VisualBody.MainBody)
weldparts(vBody.RDoor.RDoor, vBody.VisualBody.MainBody)
weldall(vBody.VisualBody:GetDescendants())
weldparts(vBody.VisualBody.MainBody, rigbody)

weldall(visFL.Parent:GetDescendants())
weldall(visFR.Parent:GetDescendants())
weldall(visRL.Parent:GetDescendants())
weldall(visRR.Parent:GetDescendants())


weldparts(visFL,rigbody.Parent.FL.wheel)
weldparts(visFR,rigbody.Parent.FR.wheel)
weldparts(visRL,rigbody.Parent.RL.wheel)
weldparts(visRR,rigbody.Parent.RR.wheel)



visFL.Parent:SetPrimaryPartCFrame(rigbody.Parent.FL.wheel.CFrame)

Code involving the aligning of the wheels is at the bottom
“visFL.Parent:SetPrimaryPartCFrame(rigbody.Parent.FL.wheel.CFrame)”